When the government increases the amount of debt it issues during expansionary fiscal policy, issuing bonds in the open market will end up competing with the private sector that may also need to issue bonds at the same time.
Carrier oil, also known as base oil or vegetable oil, is used to dilute essential oils and absolutes before they are applied to the skin in massage and aromatherapy.
Choosing a carrier oil is exactly the same as choosing an essential oil really, - you choose one with the properties that you need for your particular needs. You just need to know some basic facts about the properties, actions and viscosity of vegetable oils, and then choosing becomes easier.